================
@@ -368,3 +373,37 @@ bool
lldb_private::formatters::NSTaggedString_SummaryProvider(
stream << suffix;
return true;
}
+
+bool lldb_private::formatters::NSIndirectTaggedString_SummaryProvider(
+ ValueObject &valobj, ObjCLanguageRuntime::ClassDescriptorSP descriptor,
+ Stream &stream, const TypeSummaryOptions &summary_options) {
+ if (!descriptor)
+ return false;
+
+ uint64_t payload = 0;
+ if (!descriptor->GetTaggedPointerInfo(nullptr, nullptr, &payload))
+ return false;
+
+ // First 47 bits are the address of the contents.
+ addr_t ptr = payload & 0x7fffffffffffULL;
+ // Next 13 bits are the string's length.
+ size_t size = (payload >> 47) & 0x1fff;
+
+ Status status;
+ std::vector<char> buf(size);
+ if (auto process_sp = valobj.GetProcessSP())
+ if (process_sp->ReadMemory(ptr, buf.data(), size, status)) {
+ llvm::StringRef prefix, suffix;
+ if (auto *language = Language::FindPlugin(summary_options.GetLanguage()))
+ std::tie(prefix, suffix) =
+ language->GetFormatterPrefixSuffix("NSString");
+ stream << prefix << '"';
+ stream.PutCString({buf.data(), size});
----------------
adrian-prantl wrote:
Does PutCString scan through the buffer until it finds a `NUL` byte or does it
copy `size` bytes (which would be faster).
I doubt this affects the performance measurably. Just being curious.
https://github.com/llvm/llvm-project/pull/136025
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